Articles tagged with Infectious Disease Transmission
A Zika vaccine candidate has been shown to be safe and effective when administered both before and during pregnancy, according to a new study. The purified, inactivated vaccine (ZPIV) candidate prevented placental damage and blocked transmission of Zika virus from mother to fetus.
A new study by the University of Washington found that condom use has been declining among younger gay and bisexual men, even when not taking PrEP. The study highlights the need for continued education about the benefits of using condoms during sex to reduce HIV transmission rates.
Researchers mapped disease dynamics in foothill yellow-legged frogs, tracing patterns of infection across a large geographic range. The study found that drought, rising temperatures, and agricultural land conversion drive Bd infection, with the pathogen affecting nearly entire region from southern coast to central Oregon.
A study models habitat suitability for medically relevant black flies in four German federal states, predicting an increase in their population due to climate change. The findings suggest that the warming temperatures and changing land use could promote the growth of species with a broad niche, leading to more frequent occurrences.
A University of Sydney study sheds light on the 2022 child hepatitis outbreak, finding that 'helper virus' infections were likely the cause. The study reveals that over 3,000 cases were reported globally, with six percent requiring liver transplants.
A 46% increase in gonorrhoea cases in Denmark has been reported, particularly among younger women and men who have sex with women. Genomic analysis reveals distinct clones driving the increase, which may be more susceptible to treatment and have higher transmissibility.
The new guideline aims to improve diagnosis and treatment of cryptococcosis, a fatal fungal infection that affects mainly the lungs and brain. It provides practical guidance for medical staff to recognize and manage invasive fungal infections, with the goal of improving patient survival rates.
Scientists are studying the replication mechanism of Zika virus and its ability to transmit from an infected mother to her unborn child. They aim to understand how the virus creates connections called tunneling nanotubes that allow it to replicate and infect cells.
A new study from the University of Cincinnati finds that being in prison is a significant driver of multidrug-resistant tuberculosis (MDR-TB) transmission. The researchers identified molecular resistance patterns and defined recent transmissions, highlighting the need for targeted interventions to control the MDR-TB epidemic in prisons.
A study published in EuroSurveillance found that 40% of COVID-19 infected individuals were identified through contact tracing, with socio-economic factors influencing reporting rates. The effectiveness of contact tracing alone was relative, but its psychological impact on the population should not be overlooked.
Early data from Luxembourg's national immunisation campaign against severe respiratory syncytial virus (RSV) in 2023 showed a decline in hospitalisations, especially among infants under six months old. The authors attributed this to the administration of a monoclonal antibody, nirsevimab, shortly after birth. Additionally, the mean age...
Research suggests that people conceal infectious illnesses, with 75% of participants reporting hiding an illness from others. The findings imply significant public health implications and suggest solutions may require individual good will.
Researchers analyzed over 770,000 cases of chikungunya and zika in Brazil, finding a decline in spatial variations for both diseases but an increase in case numbers in 85% and 57% of clusters. High-risk areas are linked to higher temperatures, low rainfall, urbanization, and social inequality.
Researchers analyzed electronic health records and contact tracing data to evaluate the effectiveness of prevention measures implemented during the pandemic. Universal masking was found to be a crucial factor in preventing SARS-CoV-2 transmissions in healthcare settings, with airborne negative pressure rooms and N95 respirator masks no...
A study in Paraguay found that people deprived of liberty are at a high risk of tuberculosis (TB) during and after incarceration. The risk persists for years after release, with the incidence of TB declining but remaining 10 times higher than in the community.
A comprehensive study reveals repeated incursions of Foot-and-Mouth Disease virus in Israel and neighboring areas, emphasizing the importance of improved surveillance, vaccination efforts, and cross-border cooperation. The research underscores the necessity for unified strategies to effectively combat FMD and reduce its economic and ag...
A new study from the University of Birmingham suggests that epidemic modeling can significantly overestimate infection numbers due to ignoring network structures. The researchers found that heterogeneous networks can lead to smaller epidemic waves and fewer infections, contradicting standard 'random mixing' models.
New research found significant differences in heat tolerance among mosquito populations, with some more resilient to heat waves than others. Climate factors such as precipitation and humidity play a crucial role in determining their thermal limits, which may impact disease transmission.
A recent study published in EBioMedicine found that yellow fever virus causes myocardial fibrosis, cardiomyocyte hypertrophy, and vascular endothelium alterations, leading to cardiac conduction system disruption. The research provides new insights into the pathogenesis of YF-associated heart injury.
A new study from Scripps Research scientists and collaborators found that local transmission of SARS-CoV-2 was driven by travel between locations, not geographic proximity. The partial closure of the U.S.-Mexico border was ineffective in preventing cross-border transmission.
The European Union has approved vaccines for pregnant women and monoclonal antibodies to prevent respiratory syncytial virus (RSV) among young children. New sequencing tools have also been developed to track the genetic diversity of RSV and inform vaccine effectiveness and treatment strategies.
A new study published in Nature Microbiology suggests that providing easy access to HIV treatment and care for heterosexual men could rapidly cut transmission to their female partners. Closing the viral suppression gap in men is estimated to halve rates of new infections among women and eliminate gender disparities.
A new study by University of Arkansas researchers suggests that male-biased pathology makes male canaries more likely to transmit the avian bacterial pathogen Mycoplasma gallisepticum. The study found that male birds have shorter incubation periods, longer recovery periods, and higher pathogen loads than females.
New HIV diagnoses rose by 31% in the EU/EEA in 2022, with migrants accounting for 49% of cases. Ukrainian refugees made up a significant proportion of new diagnoses, with women disproportionately affected. The increase highlights the need for tailored early testing and treatment approaches to address this growing public health threat.
Researchers at UC Riverside found that SARS-CoV-2 entry varies among different species and tissue types, highlighting the need for thorough investigations into viral entry mechanisms. The study's findings suggest that targeting TMPRSS2 may not be effective in preventing COVID-19 infection in mink.
A recent study found that COVID-19 transmission rates in child care centers were only about 2% to 3%, with 1 in 20 symptomatic children testing positive. Vaccination is still highly recommended, as vaccines are a safe and effective way of preventing serious infection.
A computer simulation by Nagoya University researchers found that human behavior, such as lockdowns and isolation measures, influenced the evolution of new COVID-19 strains. The study discovered that SARS-CoV-2 variants with higher peak viral loads were more successful at spreading, but also had shorter infection durations.
A study of over 2,300 patients found that HIV-1 neutralizing antibody response decreases over time but highly potent broadly neutralizing antibodies remain detectable. This finding suggests a possible permanent vaccine response and is an important step toward developing an effective HIV-1 vaccine.
Researchers observed Canada goose flocks before and after a population-management cull, finding that the birds strengthened existing relationships rather than forming new connections. This social conservatism helps reduce the potential for increased disease transmission.
Researchers from Mass General Brigham found that patients experiencing virologic rebound after treatment may remain contagious. The study suggests that individuals shed live virus when experiencing a rebound, implying the potential for transmission after initially recovering from the virus.
Scientists at the La Jolla Institute for Immunology have uncovered a group of T cells known as mucosal-associated invariant T (MAIT) cells. These cells can recognize the same markers whether they come from humans or mice, opening up new possibilities for treating infectious diseases and improving cancer immunotherapies. The study also ...
A new five-year research project combines AI, virology, and ecology to anticipate future SARS-CoV-2 strains that could pass between animals and people. The team will use artificial intelligence to predict variants and assess risk of spillover from people to wildlife.
Bio-TCV, a typhoid conjugate vaccine developed by IVI and Bio Farma, has been licensed in Indonesia following marketing approval from BPOM. The vaccine is expected to provide protection against typhoid fever as early as 9 months of age.
The Asian malaria mosquito Anopheles stephensi is spreading drug and diagnostic resistant malaria in Africa, increasing the risk of malaria infections by 270%. Its unique ecology and resistance to insecticides make it challenging for conventional mosquito control tools.
Researchers at Gwangju Institute of Science and Technology developed metal-enhanced fluorescence probes for rapid and accurate detection of influenza viruses. The probes showed high sensitivity and specificity, detecting the virus even at low concentrations, with a remarkable accuracy of over 99%.
A new project will monitor how changing environmental conditions shape viral outbreaks in wild rodent populations to identify hotspots with high potential for spillover into people. The team will use metaviromics and AI to analyze data from wild rodents in the UK and Eastern Uganda.
Researchers found that higher ventilation rates do not necessarily prevent the spread of airborne diseases in cruise ship cabins. The ideal ventilation strategy involves medium flow rates during occupancy and increased airflow after evacuation to minimize droplet spreading.
Robust data supports face mask use to reduce SARS-CoV-2 transmission in community settings. The study recommends masks as part of future pandemic responses to respiratory viruses.
Researchers found that smooth surfaces like tile and lacquer-coated wood have low bacterial growth, while porous surfaces like untreated oak increase the risk of contamination. Treated wood is recommended as surface material to prevent bacterial transmission via dry hands.
A study found that COVID-19 transmission rates in child care centers were low, with only 2% to 3% of cases occurring within the centers. In contrast, household transmission was high, with 50% of children and 67% of adults contracting the virus once infected.
A study of 83 children in 11 child care centers found low SARS-CoV-2 incidence and transmission within the centers, as well as from infected children to households
Researchers develop device capturing airborne droplets and aerosols while allowing light and sound transmission. The innovation offers a sustainable solution to preventing airborne infection without disrupting economic activities or daily face-to-face interactions.
A new Australian study suggests harnessing genomic surveillance technology can detect the rise of deadly 'superbugs', slowing their evolution and spread to improve global health outcomes. The study highlights the need for a multifaceted 'One Health' approach to surveillance, with practical recommendations for implementation.
A new neighborhood-based care model has been shown to be effective in treating hepatitis C among injection drug users and those experiencing homelessness. The study found that 92% of participants had undetectable levels of the virus after treatment, with 84% achieving sustained virologic response.
A new study reveals a distinct genetic fingerprint of Leishmania mexicana in non-traveler patients with cutaneous leishmaniasis, suggesting locally acquired cases are on the rise. The CDC warns that domestic sand flies may acquire a deadly form of visceral leishmaniasis via imported dogs.
The US is experiencing an explosive rise in tick-borne diseases, with over 490,000 annual cases fueled by increased white-tailed deer populations and forest regrowth. New vaccines targeting human hosts and animals are being developed to combat this growing health threat.
New research from MIT found that germicidal UV lights can produce potentially harmful compounds in indoor spaces. The study suggests that the lights should be used with appropriate ventilation to minimize health risks. Researchers emphasize that the new UV lights are not a replacement for ventilation but rather a complement to it.
A new study by Duke University researchers has found endemic malaria in Turkana County, Kenya, with a significant incidence of Plasmodium vivax, a parasite historically rare in sub-Saharan Africa. The presence of invasive mosquito species Anopheles stephensi also poses challenges to the continent's malaria control efforts.
A novel procedure using a refined technique and narrower tube has reduced the risk of transmitting mitochondrial disease during assisted reproduction. The study found that the new protocol resulted in normal development of embryos and healthy offspring, with minimal transfer of maternal mitochondria to the offspring.
Brazilian researchers screened 160 existing drugs and identified six compounds effective against Toxoplasma gondii. Almitrine, a COPD treatment, showed significant reduction in brain parasite load. Further studies are needed to repurpose these drugs for toxoplasmosis treatment.
Researchers found that using electronic prompts during appointment scheduling for seasonal flu and COVID-19 vaccines can identify willing participants for HPV and shingles vaccines. Only 30% of those booking for these vaccines were already vaccinated against HPV, presenting a significant opportunity for targeted campaigns.
A recent study conducted at the University of São Paulo's Medical School found that isolating patients with carbapenem-resistant Enterobacteriaceae (CRE) in emergency departments (ER) for over two days can significantly reduce CRE transmission. The researchers also discovered that the ER structure, including bed layout and hand hygiene...
Researchers have sequenced the genomes of transmissible shellfish cancers, revealing high levels of genomic instability not seen in other cancers. The study focused on the common cockle, a species that belongs to one of the oldest groups of animals on Earth.
A pilot study in Catalonia found that self-sampling is a feasible and acceptable method for diagnosing asymptomatic mpox. The study identified 7 positive cases, including 3 asymptomatic individuals, and estimated the prevalence of infection at 6.19%.
Researchers have discovered a new plasmid in epidemic Vibrio cholerae samples that introduces genes encoding resistance to multiple antibiotics. The finding underscores the importance of genomic surveillance and suggests that the strain's stability poses a concerning factor for future outbreaks.
A study by Washington State University researchers found epigenetic alterations associated with elk treponeme-associated hoof disease, suggesting a systemic impact. The findings also suggest that the disease may be heritable, raising concerns about its transmission and susceptibility.
A new study found that most C. diff infections are caused by characteristics associated with the patient themselves, not hospital transmission. Researchers analyzed fecal samples from over 1,100 ICU patients and discovered only six genomically supported transmissions during a nine-month period.
The American College of Physicians has issued updated rapid, living practice points on treating COVID-19 patients in outpatient settings. The new guidance supports the use of molnupiravir or nirmatrelvir-ritonavir for symptomatic patients with confirmed mild to moderate COVID-19.
Researchers analyze relationship between agriculture, emergence of new diseases. They propose a holistic approach focusing on broader factors impacting disease transmission.
Researchers use genomic surveillance to identify distinct sexual networks for syphilis transmission in England, highlighting the presence of drug resistance. The study reveals information beyond standard epidemiological surveillance data, aiding public health strategies to break transmission chains.